Undercover synonyms

Undercover synonyms DEFAULT


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[ uhn-der-kuhv-er, uhn-der-kuhv- ]

/ ˌʌn dərˈkʌv ər, ˈʌn dərˌkʌv- /


working or done out of public sight; secret: an undercover investigation.

engaged in spying or securing confidential information: an undercover agent.



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Which of the following words describes “sky blue”?

Origin of undercover

First recorded in 1850–55; under- + cover

Words nearby undercover

undercoating, undercompensate, under consideration, undercool, undercount, undercover, undercrackers, undercroft, undercurrent, undercut, undercutter

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Words related to undercover

covert, clandestine, concealed, confidential, creep, furtive, hidden, hush-hush, incognito, intelligence, private, stealth, stealthy, surreptitious, under wraps, underground, underhand, underneath, hole-and-corner

How to use undercover in a sentence

  • Additionally, just 23 percent of Republicans said the Capitol rioters weren’t undercover Antifa members.

    What Does Impeachment And The Division Over Marjorie Taylor Greene And Liz Cheney Tell Us About The GOP?|Sarah Frostenson ([email protected])|February 3, 2021|FiveThirtyEight

  • To test the Wage and Hour Division’s competence, the GAO set up a sort of undercover sting.

    All a Gig-Economy Pioneer Had to Do Was “Politely Disagree” It Was Violating Federal Law and the Labor Department Walked Away|by Ken Armstrong, Justin Elliott and Ariana Tobin|January 22, 2021|ProPublica

  • In a recent case involving the Boogaloo Bois, an American right-wing extremist group, undercover FBI agents posed as members of Hamas, a foreign terrorist organization, according an indictment issued in November.

    ‘Everyone Thinks I’m a Terrorist’: Capitol Riot Fuels Calls for Domestic War on Terror|Simon Shuster|January 18, 2021|Time

  • A multiyear undercover investigation conducted by Global Witness along with extensive reports published by the New York Times have exposed the criminal enterprises that anonymous shell companies enable.

    Congress just passed the most important anti-corruption reform in decades, but hardly anyone knows about it|jakemeth|December 26, 2020|Fortune

  • By the morning of June 5, an undercover officer had set up surveillance near Brennan’s home.

    Bethesda bike-trail assailant pleads guilty to assault in flier-snatching case|Dan Morse|December 16, 2020|Washington Post

  • A 19-year-old woman was killed in September after an undercover police watched a drug deal go down in Oklahoma City.

    The 14 Teens Killed by Cops Since Michael Brown|Nina Strochlic|November 25, 2014|DAILY BEAST

  • “We have undercover security,” says Vincent Zurzolo, the suave man in the blue suit in booth 2630 of New York Comic Con.

    The Holy Grail of Comic Books Hid in Plain Site at New York Comic Con|Sujay Kumar|October 14, 2014|DAILY BEAST

  • If you were to have undercover security, Comic Con is the perfect site.

    The Holy Grail of Comic Books Hid in Plain Site at New York Comic Con|Sujay Kumar|October 14, 2014|DAILY BEAST

  • Others seemed to be performing bombastic recitals of their grievances as if they were ill-trained actors or undercover agents.

    Hong Kong Between Calm and Chaos|Ben Leung|October 3, 2014|DAILY BEAST

  • Undercover detective Gustav Frank sold Mandelbaum several bolts of stolen silk that had been secretly marked.

    Meet 'The Queen of Thieves' Marm Mandelbaum, New York City's First Mob Boss|J. North Conway|September 7, 2014|DAILY BEAST

  • We're fighting a battle against an unscrupulous enemy, an undercover battle, Steve.

    Highways in Hiding|George Oliver Smith

  • He realized almost at once that such an unknown, undercover echelon would be a must.

    Man of Many Minds|E. Everett Evans

  • We advanced to the river's bank undercover, and commenced firing on the boat.

    Autobiography of Ma-ka-tai-me-she-kia-kiak, or Black Hawk|Black Hawk

  • But secretly he maneuvered the transfer of a five-layers-down undercover man from Madras to Government City.

    Zero Data|Charles Saphro

  • Never said to anyone that I thought Lee was doing undercover work.

    Warren Commission (3 of 26): Hearings Vol. III (of 15)|The President's Commission on the Assassination of President Kennedy

British Dictionary definitions for undercover



done or acting in secretundercover operations

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with undercover


Protected by a shelter, as in It began to pour but fortunately we were under cover. [c. 1400]


under cover of. Also, under the cover of. Hidden or protected by, as in They sneaked out under cover of darkness, or, as it was put in a sermon in 1751: “Presumption which loves to conceal itself under the cover of humility” (John Jortin, Sermons on Different Subjects).

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

Sours: https://www.dictionary.com/browse/undercover


Speaking after a session of the House legal affairs committee, which discussed a bundle of government bills reforming police laws, Nicolaou said the bill legalises the activities of undercoverpolice, even though they are already admissible in court.

Committee sets out police undercover operations

Interactive Entertainment, TT Games and The LEGO Group have launched LEGO CITY Undercover, an action- packed adventure where players must assume the identity of undercoverpolice officer, Chase McCain, and track down the fiendish Rex Fury to finally put an end to his city-wide crime wave.


NYPD undercoverofficers were so successful in infiltrating Black Lives Matter groups in New York, they were on text chains with protest organizers and gained the trust of an inner circle of activists, documents show. 

NYPD Went Undercover To Infiltrate BLM

A UNION leader has called for a Scottish inquiry into the use of undercoverpolice during the News International print strike in Glasgow in1986 and 1987.

Union want print strike investigation

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Synonyms for Undercover:

What is another word for undercover?

372 synonyms found


[ ˌʌndəkˈʌvə], [ ˌʌndəkˈʌvə], [ ˌʌ_n_d_ə_k_ˈʌ_v_ə]
  • adj.

    clandestine (adjective)
    • more closet,
    • under-cover,
    • in holes corners,
    • foxy,
    • most closet,
    • under cover,
    • on the q t,
    • on q t,
    • on qt,
    • most under the counter,
    • more under the counter,
    • in holes and corners,
    • more under-the-counter,
    • most under-the-counter,
    • on quiet.
    cloak-and-dagger (adjective)covert (adjective)
    • more dissembled,
    • masked,
    • Incog,
    • most under the table,
    • more under-the-table,
    • un-suspected,
    • most shrouded,
    • more under the table,
    • more shrouded,
    • most incog,
    • in-cog,
    • more incog,
    • most under-the-table,
    • most dissembled,
    • un suspected,
    • in cog.
    disguised (adjective)furtive (adjective)
    • more sub-rosa,
    • under-handed,
    • more sub rosa,
    • more conspiratorial,
    • most skulking,
    • more skulking,
    • under handed,
    • most sub-rosa,
    • most subrosa,
    • most slinking,
    • more subrosa,
    • more slinking,
    • most conspiratorial,
    • most sub rosa,
    • subrosa.
    hidden (adjective)
    • more hermetical,
    • more eclipsed,
    • most unrevealed,
    • un-known,
    • un detected,
    • more imperceivable,
    • in visible,
    • most hermetical,
    • withheld,
    • un-revealed,
    • out view,
    • Imperceivable,
    • most sequestered,
    • in-visible,
    • most eclipsed,
    • un revealed,
    • in discernible,
    • un-detected,
    • un-exposed,
    • un known,
    • in-discernible,
    • more sequestered,
    • with-held,
    • hermetic,
    • with held,
    • more unrevealed,
    • in dark,
    • un disclosed,
    • most imperceivable,
    • un-disclosed,
    • un exposed.
    hush-hush (adjective)lubricious (adjective)Other relevant words: (adjective)
    • hidden,
    • covert,
    • stealthy,
    • sub-rosa,
    • secret,
    • cloak-and-dagger,
    • unrevealed,
    • underhand,
    • underground,
    • surreptitious,
    • furtive,
    • veiled,
    • conspiratorial,
    • under-the-counter,
    • Shrouded,
    • clandestine,
    • on the quiet,
    • out of view,
    • sneaking,
    • Hermetical,
    • under-the-table.
    secret (adjective)secretive (adjective)stealthy (adjective)subterrestrial (adjective)underground (adjective)underhand (adjective)veiled (adjective)
  • adv.

    covertly (adverb)
  • adv

    covertly (adverb)Other relevant words: (adverb)
  • n.

    Other relevant words: (noun)
  • Other synonyms:

    Other relevant words (noun):
    • gloomily,
    • lubricious,
    • darkly,
    • secluse,
    • in a corner,
    • arcanum,
    • murkily,
    • eerie,
    • coated,
    • unknown,
    • emissary,
    • not expressed,
    • sheathed,
    • in the dark,
    • armored,
    • eccentric,
    • Housed,
    • watchtower,
    • mole,
    • concealed,
    • unexposed,
    • spook,
    • cupboard,
    • walled,
    • closet,
    • clandestinely,
    • sneak,
    • under the breath,
    • terra firma,
    • unavowed,
    • Hid,
    • console,
    • cabinet,
    • obscure,
    • intelligence,
    • abnormal,
    • skulking,
    • stealth,
    • mysteriously,
    • closeness,
    • quietly,
    • Swathed,
    • Loricate,
    • confidentially,
    • silence,
    • lurking,
    • privately,
    • latent,
    • shielded,
    • press,
    • in hiding,
    • underhanded,
    • Subterrestrial,
    • Coped,
    • under the rose,
    • subterraneous,
    • analytical,
    • muffled,
    • mantled,
    • abstruse,
    • paved,
    • clouded,
    • close,
    • dimly,
    • Intelligencer,
    • blind,
    • secretiveness,
    • cryptic,
    • strangely,
    • watchman,
    • confidentiality,
    • watchdog,
    • Tented,
    • mystic,
    • pussyfooted,
    • sequestered,
    • back door,
    • inwardly,
    • orphic,
    • exploratory,
    • concealment,
    • agent,
    • inscrutable,
    • mystery,
    • panoplied,
    • sotto voce,
    • plainclothesman,
    • in the clear,
    • wrapped,
    • illegal,
    • secretly,
    • Duskily,
    • Slinking,
    • Eclipsed,
    • in a whisper,
    • spy,
    • filmed,
    • incognito,
    • patrol,
    • remote,
    • personal,
    • mystical,
    • Prowling,
    • sly,
    • scout,
    • secrecy,
    • retirement,
    • feline,
    • cased,
    • cryptically,
    • in secret,
    • darkness,
    • enwrapped,
    • sneakily,
    • packaged,
    • atypical,
    • Stealthful,
    • shifty,
    • Ceiled,
    • out of danger,
    • enveloped,
    • in the wings,
    • backdoor,
    • at anchor,
    • Obfuscated,
    • unobtrusive,
    • in darkness,
    • backstairs,
    • incommunicado,
    • subterranean,
    • in the shade,
    • behind the veil,
    • sentinel,
    • stealing,
    • in a cloud,
    • Hooded,
    • seclusion,
    • case,
    • Vedette,
    • rear guard,
    • in the background,
    • secluded,
    • patrolman,
    • buried,
    • in ambush,
    • topsy-turvy,
    • Ensconced,
    • retreat,
    • encapsuled,
    • walled-in,
    • behind-the-scenes,
    • closely,
    • Scummed,
    • doggo,
    • individual,
    • sentry,
    • Perdu,
    • privateness,
    • belowground,
    • encased,
    • occult,
    • lighthouse,
    • above water,
    • on the qt,
    • mystically,
    • esoteric,
    • pussyfoot,
    • Obscured,
    • lookout,
    • in a fog,
    • Bandog,
    • Slinky,
    • disorderly,
    • encapsulated,
    • Spial,
    • watch,
    • deep,
    • creep,
    • mamma,
    • behind the curtain,
    • bivouac,
    • locker,
    • Loricated,
    • covered,
    • housedog,
    • Beclouded,
    • obscurely,
    • Occulted,
    • with bated breath,
    • irregular,
    • shelled,
    • privy,
    • surreptitiously,
    • secret police,
    • privacy,
    • in safety,
    • curtained,
    • cloaked,
    • sneaky,
    • internally,
    • Screened,
    • quiet,
    • erratic,
    • cowled,
    • underneath,
    • jumbled,
    • picket,
    • sheltered,
    • beacon,
    • inside man,
    • recondite,
    • enigmatically,
    • disguised,
    • in private,
    • watch and ward,
    • floored,
    • invisible.
Paraphrases are highlighted according to their relevancy:
  • Equivalence

  • Independent

    • Adjective
      hidden, disguised, unmarked, secretive, undocumented, couverture, undisclosed, surreptitious, under, incommunicado.
  • Other Related

  • adj.

    • Other antonyms:
      manifest, acknowledged, undisguised, aboveboard, plain, unconcealed, evident, patent, unclassified, unrestricted, avowed, straightforward, obvious, clear.


Sours: https://www.thesaurus.net/undercover
Sending an Attractive Lookalike to My High School Reunion

antonyms for under cover


Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

How to use under cover in a sentence

Under the one-sixth they appear as slender, highly refractive fibers with double contour and, often, curled or split ends.


The Majesty on high has a colony and a people on earth, which otherwise is under the supremacy of the Evil One.


Poor Squinty ran and tried to hide under the straw, for he knew the boy was talking about him.


For several months he remained under a political cloud, charged with incompetency to quell the Philippine Rebellion.


All elements of expression modify each other, so that no mere rule can cover all cases.


Under the internal pressure his whiskers stood on end and his face grew red.


The Vine is a universal favorite, and rarely out of view; while it often seems to cover half the ground in sight.


We are apt to think of these little ones as doing right only when under compulsion: but this is far from the truth.




adjectivesecret; pertaining to a hidden goal

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

Sours: https://www.thesaurus.com/browse/under%20cover

Synonyms undercover

Undercover synonyms


The definition of hidden is concealed.


Operating in a hidden or confidential manner:


The definition of furtive is doing something in a sneaky or hidden way.


With one's identity disguised or concealed.



Having interspersed gaps, spaces, or intervals:


The definition of public is something that is related to, available to or known by people.


Of or characteristic of the activities of spies and undercover agents, esp. as extravagantly depicted in popular suspense fiction

sub rosa

Carried out secretly or confidentially


Show describes something related to a performance.


Secret, not spoken of (spoken of only in hushed whispers between insiders).


Situated, occurring, or operating below the surface of the earth:

Find another word for undercover. In this page you can discover 30 synonyms, antonyms, idiomatic expressions, and related words for undercover, like: hidden, clandestine, surreptitious, privately, surreptitiously, secret, secretly, concealed, confidential, covert and disguised.

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8 Ways to Express Feeling Surprised in English - Advanced English Vocabulary

The wives of colleagues made it clear that they would not. And you could leave the island only after six months. Kolya wanted to cheat and return to the mainland.

Now discussing:

What I want from them. Sex with you was wonderful, for the first time I lost my head in the arms of an inexperienced girl. You are amazing in bed.

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